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Journal of Materials Science

, Volume 37, Issue 15, pp 3101–3106 | Cite as

Solid freeform fabrication by extrusion and deposition of semi-solid alloys

  • S. Finke
  • F. K. Feenstra
Article

Abstract

Solid Freeform Fabrication (SFF) refers to techniques that create prototypes by a layer wise deposition of material. There are several techniques available, none of which allows the production of metallic prototypes without post processing, such as debinding or sintering. One of the SFF techniques, Fused Deposition Modeling (FDM®), is a well established process for thermoplastic materials such as for example ABS. Based on the FDM® technique, a process is being developed that allows the extrusion and deposition of semi-solid metals (EDSSM). The microstructure of an alloy in the semi-solid state has been investigated as a function of parameters used for rapid prototyping with SFF techniques. The extrusion and deposition processes are dependent on the rheological properties of the semi-solid metal, which in turn are dependent on the microstructure. The effect of microstructure and rheological properties on the extrusion and deposition processes is discussed.

Keywords

Polymer Microstructure Rheological Property Deposition Process Rapid Prototype 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • S. Finke
    • 1
  • F. K. Feenstra
    • 1
  1. 1.TNO Industrial TechnologyEindhovenThe Netherlands

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